Rule of thumb: Eat for what you're going to be doing, and not for what you have done. Don't take in more than you're willing to burn off.
“I sort of feel sorry for the next man who gets me. I may just kill him with passion. He'd better be strong and have a good heart!”
“Learn to do common things uncommonly well; we must always keep in mind that anything that helps fill the dinner pail is valuable.”